Question

In each reaction box, place the best reagent and conditions from the list below.

n each reaction box, place the best reagent and conditions from the list below. The third step is correct, but the others are not. PCC oxidizes an alcohol to a carbonyl group. Which reagents will convert an alkene to a hydroxyl group, and with the necessary regioselectivity? 2) NaBH in EtOH 3) PCC in CH2Cl2 PhCO3H in CH2012 CH30Na in CH3OH B2H6 in THF in CH2Cl2 PhLi in Et20

Answer 1

Concepts and reason

The concept is to synthesize different products from different reactants by using the list of reagents provided.

Fundamentals

PCC is an oxidising agent, which oxidise primary alcohol to aldehyde.

Alkenes are converted to alcohols by means of hydration, hydroboration-oxidation.

${\rm{LiAl}}{{\rm{H}}_{\rm{4}}}$ is strong reducing agent and ${\rm{NaB}}{{\rm{H}}_{\rm{4}}}$ mild reducing agents.

The reaction is,

The reaction is,

The reaction is,

The reaction is,

The reaction is,

The reaction is,

The reaction is,

The reaction is,

Ans:

Thus, the correct choice of reagents is,

Thus, the correct choice of reagents is,

Thus, the correct choice of reagents is,